subform with multiple pages jump to first field

[Axis]

I have a subform with 4 pages and about 5 fields on each page. When I'm in a field on the 2nd, 3rd or 4th page and I move to another record, the focus on the subform jumps back to the 1st field on the 1st page. Needless to say, this is quite irritating.

I have no On Current or other code that would make this happen. Any thoughts about what I can do to prevent this?